| Year | Value | | 2022 | 401,883 | | 2021 | 387,236 | | 2020 | 372,809 | | 2019 | 358,657 | | 2018 | 344,879 | | 2017 | 331,692 | | 2016 | 318,867 | | 2015 | 306,131 | | 2014 | 293,522 | | 2013 | 281,736 | | 2012 | 271,095 | | 2011 | 261,103 | | 2010 | 251,688 | | 2009 | 242,836 | | 2008 | 234,564 | | 2007 | 226,879 | | 2006 | 219,974 | | 2005 | 213,867 | | 2004 | 207,540 | | 2003 | 201,990 | | 2002 | 198,800 | | 2001 | 197,070 | | 2000 | 195,960 | | 1999 | 195,905 | | 1998 | 195,636 | | 1997 | 193,446 | | 1996 | 190,216 | | 1995 | 186,809 | | 1994 | 183,638 | | 1993 | 180,927 | | 1992 | 178,558 | | 1991 | 176,239 | | 1990 | 173,714 | | 1989 | 170,959 | | 1988 | 167,951 | | 1987 | 164,650 | | 1986 | 161,358 | | 1985 | 158,286 | | 1984 | 155,303 | | 1983 | 152,510 | | 1982 | 150,507 | | 1981 | 148,164 | | 1980 | 144,708 | | 1979 | 141,583 | | 1978 | 138,943 | | 1977 | 136,404 | | 1976 | 134,004 | | 1975 | 131,518 | | 1974 | 128,958 | | 1973 | 126,319 | | 1972 | 123,606 | | 1971 | 120,942 | | 1970 | 118,341 | | 1969 | 115,796 | | 1968 | 113,416 | | 1967 | 111,208 | | 1966 | 109,051 | | 1965 | 106,934 | | 1964 | 104,866 | | 1963 | 102,838 | | 1962 | 100,844 | | 1961 | 98,979 | | 1960 | 97,242 |
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